Oil-pump for motors.



H. ZIELINSKI.

on PUMP Foa Moms.

APPLICATION FILED DEC. 30. 191,3.

Patented Nov. 30, 1915.

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WITNESSES STATES rerun aaron HIEBGNYMUS ZIELINSKI, GF ERLIN, GERMANY. 4

OIL-PUMP FOR MOTORS.

To all whom it may concern:

Be it known that l, HIERONYMUS ZiELIN- sm, a subject of the King of Prussia? and' residing at Alt Boxhagen 17/18, Berlin 0,

112, Germany7 have invented certain new and useful Improvements --in Gil-Pumps for 'i Motors, of which the following is a specilication.

This invention relates to an oil pump for internal combustion and other motors, the

improved pump being particularly suitable for use with internal combustion motors employed on motor vehicles.

The oil pump is of the kind adapted to be driven by the motor to which it is applied in such a way as to deliver oil automaticallyA While the motor is running.v The hand-0perated oil pump has a disadvantage of requiring continual personal attention. The

sight-feed type does not deliver a uniform amount of oil, because of the rise or fall of the pressure in the casing. They furthermore consume large quantities of oil.

My improved oil pump is economical in action, and delivers regulated amounts.

A further important advantage consists in the fact that owing to its small dimen-v sions it can be fitted in places where it has been undesirable or even impossible to provide an oil pump as heretofore usually constructed.

' Figure 1 represents a vertical section of an embodiment of my oil pump, and Fig. 2 isa cross-section of line A-B of Fig. 1.

The pump body 2 is made in one with the cover of the casingV 1 and is formed with an 'A an axial hole or boring 6 to receive the pump piston 7. The cylindrical member 5 is formed with two holes 8 and 9 adapted'whenthe said member is rotated to register alternately with the openings 3 and 4 respecu tively. The end portion of the cylindrical member 5 extending beyond tlie pump body Specicationef` Letters Patent.

. is solid and is formed with a screw thread peripheral camV groove 19 in the member 5;

A spring 'ring 2O prevents the ball from falling out of the hole 18. Fitted in the pump body 2, as is clearly shown in Fig. 2, is a Vring 21 provided with a number of projections 25 that engage slots cut in the lower edge of the sleeve 14 to prevent the sleeve from rotating while admitting of` its freely sliding up and down. Vhen the motor is running the cylindrical member 5 is rotated by the driving projections l1 and 12 and theV sleeve 14 is thereby'moved up` and down through the ball working in the peripheral groove 19 of the said member; the sleeve 14 in turn positively moves the piston 7 through the disk 22, that constitutes the top of the.

sleeve, Vin one direction and through the screwed cap 15 in the Vother direction. By screwing the cap 15 toV a greater or lesser extent in the sleeve 14 the stroke of the piston can be regulated at will, and when the cap 15 is screwed quite down, from its highest position in which it is shown in the drawing, on to the disk 22, the piston is not actuated at all. A spring 24 prevents the adjustable cap 15 from working loose.

What I claim is 1. In an oil Vpump for motors, a casing formed with oil inlet and outlet ports, a member adapted to revolve in said casing formed with a pump chamber and inlet and outlet ports adapted to alternately register with the inlet and outlet ports of Said casing as said member revolves, 'a pump piston arranged to reciprocate in-the chamber of said revolving member,` a sleeve engag- Iatented Nov. 3G, 1915. Application field December 39, 1913. Serial No. 809,469. Y

yand outlet ports adapted to alternately register with the inlet and outlet ports of said casing as said member rotates, a pump pisy ton arranged to reciprocate in the chamber of said rotary member, a sleeve mounted to reciprocate on said rotary member, an eX- tension projecting vfrom said piston, a stop on said extension, a part on said sleeve engaging said extension between said piston andsaid stop, and means connecting said revolving member to said sleeve and adapted to reciprocate saidl sleeve by the revolution of said member. Y

8. In an oil pump Yilior"` motors, a casing formed `with oil inlet land outlet ports, a cylindrical member adapted to revolve in said casing, the said member being formed with a peripheral camY groove, with inlet and outlet ports adapted to alternately register with the inlet and outlet ports of said casing Yas said member rotates, and with arpump chamber, a pump piston arranged to recipi'ocate in the chamber of said revolving member, a sleeve engaging said piston and mounted to reciprocate on said rotary member, thel said sleeve being lformed with a hole, and a ball engaging the hole in saidsleeve and the peripheral groove of said `cylindrical revolving member.

4. In an oil pump forV motors, acasing formed with oil vinlet and outlet ports, a member adapted to vrevolve in 'said casing and formed'witli a pump chamber and inlet and outlet ports adapted toalternately register with tlie inlet and outlet ports of said casing as said member revolves,y a pump piston arranged to reciprocate in the chamber of said revolving member, a y sleeve mounted to reciprocate on said rotarymember,'an extension projecting from said piston, an adjustable stop'on ksaid extension, a part on said sleeve engaging said extension between said piston and said stop, and means connecting said revolving member to said sleeve and adapted to reciprocate said sleeve by the revolution of said member.

5. In an oil pump for motors, `a casing formed with oil inlet and outlet ports, a

member adapted to revolve in said casing Vand formedwitli a-pump chamber and inlet and outlet ports adapted to Valternately register with the'inlet and outletports of said casing as said member revolves, .a pump piston arranged .to reciprocate in the Chamber of said revolving member, a sleeve mounted to reciprocate on said revolving member, an

extension projecting from said piston, a stop on said extension, an adjustable cap on said sleeveengaging said extension between said piston and said stop and means" connecting said revolving member to said Vsleeve and adapted to reciprocate said sleeve by the revolution ot said member.

6. In an oil pump for motors, a casing formedwith oil inlet Vand outlet ports, a member adapted to revolve in Vsaid vcasing' and formed with a pump chamber and inlet and outlet ports adapted to alternately reg'- ister with the inlet and outlet ports of saidY casing as said member rotates, a pump piston arranged toreciprocate in the chamber of said revolving member, a sleeve provided with anexternal screw thread for a partfof its length and mounted to reciprocate on said rotary member, an extension projecting '85 'a capscrewed on said sleeve engaging said from said piston, a stop on said extension,

extension between said Apiston and saidstop, and means connecting said rotary member t0 said sleeve and adapted to reciprocate said sleeve by the revolution of saidmember.

7. In an oil pump for motors, a casing formed with oil inlet and outletports,` a member adapted to revolve in said casing and formed with a pump chamber and inlet and outletports adapt-ed to alternately register with the inlet and outlet ports of said casing as said member revolves, a pump and said stop, a spring within said cap, andr means connectingsaid revolving member to said sleeve and adapted toreciprocate saidy sleeve by the revolution of said member.

8. In an oil pump for motors, a casing formed with inlet and outlet ports, a cylindrical member constituting' a pump chamber mounted to revolve4 in said casing, said member being formed with a peripheral cam groove and with inlet and exhaust ports adapted to register alternately with the inlet and exhaust ports of said casing as said member rotates, a sleeve mounted to slide on said member, means for preventing revolving movement of said sliding sleeve, said Vsleeve being formedivith `'a hole, a ball engaging the hole Ain said sleeve and also the cam groove of said member, a part fixed tosaid sleeve engagingpsaid piston, an extension on said piston that projects through said part, a n ut on said extensiomga cap acljustable on said sleeve and engaging said extension between said nut and said part, and a spring located in said cap.

9. In an oil pump for motors having a casing Jformed with oil inlet and outlet ports, and a movable member having inlet and outlet ports adapted to alternately register with the inlet and outlet ports of said casing, an inclosed pump chamber, a piston adapted to reciprocate in said pump cham ber, and means whereby said movable member is connected with said piston, to move it, at any desired point in the movement of said movable member.

In testimony whereof I aflix my signature 15 Copies of l:his patent may be obtained for ve cents each, by addressing the Commissioner of PatentsA Washington, D. C. 

